Function - Get querystring variable

/ Published in: JavaScript
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Many thanks to for this one. Works like a charm. Usage is similar to server side built-in functions.

Copy this code and paste it in your HTML
  1. function getQuerystring(key, default_)
  2. {
  3. if (default_==null) default_="";
  4. key = key.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  5. var regex = new RegExp("[\\?&]"+key+"=([^&#]*)");
  6. var qs = regex.exec(window.location.href);
  7. if(qs == null)
  8. return default_;
  9. else
  10. return qs[1];
  11. }


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